I have read a few places that hand cancelling is a good choice for magnets in envelopes ie Save the Dates, so I'm wondering if I should have them hand cancelled?
I went to pick up stamps and have it weighed so that I put proper postage on it and asked about hand cancelling. The guy at the post office said it wasn't necessary since the magnet is flexible and it's still flat. He also said that it was an extra 0.22 to have them hand cancelled. I am wondering if it's worth it to pay the extra to have them hand cancelled or if they should be fine just going through the machine.